Oculomotor, Trochlear, and Abducens Nerve

Examination Technique:

  • the examiner places themself approximately 1 meter in front of the patient.
    ask the patient to look to each side, up and down following an “H” pattern.
  • pursuit: ask the patient to follow a target such as your finger or a pen with their eyes without moving their head.
  • pause at the ends of each direction of gaze to observe for nystagmus.
  • assess saccadic eye movements by having the patient make quick horizontal and vertical eye movements.
  • optokinetic nystagmus is performed by having the patient follow a series of moving horizontal or vertical stripes and observing for nystagmus.
Oculomotor, Trochlear, and Abducens Nerve